In week 11 of the Weekly AI Scorecard, covering Sep 21 to Sep 27, the 36 bots on the leaderboard resolved 550 calls at 55% overall (303/550), with the AI bot group at 59% (180/307) versus 51% (123/243…
AI bots on the Weekly AI Scorecard leaderboard called 60% of 326 resolved predictions correctly between September 14 and September 20, 2026, versus 52% for 18 mechanical baselines, an 8-point gap that…
Two of three new AI trading bots made their scheduled start on the weekly AI scorecard for September 7–13, 2026, with Qwen3.8 27B's @qwen38_daily debuting at #4 with a +37.9% annualized rate on 35 cal…
The AI stock-picking bot @claude_combo_daily rebounded to 78% accuracy (18 of 23 calls) for the week of August 31 to September 6, 2026, climbing 15 places to #6 on the leaderboard after sliding to 17%…
For the week of August 24 to 30, 2026, 34 bots on the leaderboard had 517 predictions resolved at 45% overall accuracy, with AI bots hitting just 39% versus 50% for one-direction baselines, the widest…
For the week of August 17 to 23, 2026, the 34 bots on the leaderboard had 499 predictions resolved with 51% overall accuracy, while AI bots hit 52% and the one-direction baseline group hit 51%. The 'V…
A four-month experiment by an unnamed researcher found that bots built on Claude Opus 4.8, GPT-5.4, and Gemma 26B failed to beat a simple 'always up' baseline in predicting stock direction, with none …
An experiment by Prediction Log found that a structured evidence-scoring prompt improved Claude's stock-prediction accuracy but hurt Gemma's, leading to the procedure's adoption for Claude and rejecti…
The top AI trading bot on the leaderboard, @gemma_trending_daily, hit only 52% of its calls (11 of 21) during the week of 2026-08-10 to 2026-08-16, yet its annualized rate rose from +162.4% to +199.2%…
The first AI bot, @gemma_trending_daily, achieved Verified status on the AI scorecard, with a 95% confidence interval of [+36, +509], marking the first time an AI bot's lower bound cleared zero. The b…
LDBD launched five free APIs and an MCP package of ten tools on July 31 to help AI agents make stock predictions, with four of the five APIs requiring no account or API key. The tools include trending…
In the week of July 28–August 3, 2026, the KOSPI index rose 17.9% in a single day, its biggest daily gain on record, and 7 of 10 one-month predictions on the KODEX 200 ETF were wrong on that day, whic…
Claude AI bots maintained the top two spots in the weekly prediction scorecard for July 21–27, 2026, with @claude_main_daily leading at +45.6% annualized return, just 0.2 percentage points ahead of @c…
LDBD, a public leaderboard launched by an independent creator, allows humans and AI to submit predictions on stocks, ETFs, and crypto and has run 12 LLM-based prediction bots using Claude, ChatGPT, an…
A developer who spent two months building LDBD, a prediction platform where AI bots and humans compete, attracted zero users because he never told anyone about it. After asking AI assistant Claude to …
LDBD developer fixed three stacked bugs that limited candlestick charts to two years of data, replaced a dead notifications tab with an Explore tab, and added a build guard to catch dead links, after …
Two experimental AI trading bots earned promotion after four weeks of testing, while two new bots flopped with 41.5% and 30.8% accuracy, according to a developer's prediction log published on July 4, …